Answer:
37
Step-by-step explanation:
Assuming there is 5 days in his school week. He would walk 37 miles. First you would do 3.7 times 2 to get the number he walks there and back everyday. Then you would times that by 5 for each day he walks there and back. Final answer is 37.
Answer:
1/6.
Step-by-step explanation:
Prob(Tail) = 1/2
Prob(gets number > 4 , that is a 5 or a 6) = 2/6 = 1/3.
So required probability = 1/2 * 1/3
= 1/6.
The individual probabilities are multiplied as the 2 events are independent.
The surface area of a sphere = 4 π r²
= 4 π 4²
= 4 π 16
= 64 π in.²
The volume of a sphere = 4/3 π r³
= 4/3 π (4)³
= 4/3 π 64
= 256/3 π in.³
Answer: 
Work Shown:

Side note: The result factors to (y+3)(y+6), but I'll leave it unfactored.
Answer:
y=6
Step-by-step explanation:
|10-5y|=20
Since the absolute value is isolated, we can then separate the equations
For absolute values, there is a positive and negative when we remove the absolute values.
10-5y = 20 10-5y= -20
Subtract 10 from each side
10-10-5y = 20-10 10-10-5y= -20-10
-5y = 10 -5y = -30
Divide by -5
-5y/-5 =10/-5 -5y = -30/-5
y =-2 y =6